Portable riveter suspension



A. E. RYLANDER PORTABLE RIVETER SUSPENS ION 2 Sheets-Sheet 1 April 20,1943.

Filed April 3, 1940 April 1943. A. E. RYLANDER 2,317,224

PORTABLE RIVETER SUSPENSION Filed April 3, 1940 2 Sheets-Sheet 2INVENTOR. fi/vpefw 5 En ma e ATTORNEY.

Patented Apr. 20, 1943 UNITED STATES PATENT OFFICE PORTABLE RIVETERSUSPENSION Andrew E. Rylander, Detroit, Mich., assignor to The MidlandSteel Products Company, Cleveland, Ohio, a corporation of OhioApplication April 3, 1940, Serial No. 327,596

3 Claims.

This invention relates to new and useful improvements in suspensions fortools too heavy for entire manual positioning relative to work tofacilitate moving and tilting of the tool into engagement with work atdiiierent locations, angles and in different planes.

Another object of the invention is to provide universal interchangeableattachment means adaptable for the connection of various types ofsuspension brackets to the tool.

A further object of the invention is to provide novel suspension meansenabling the tool to be normally suspended and rocked both in its ownplane and sidewise or transversely thereof with minimum manual effort.

Other objects and advantages of the invention will become apparentduring the course of the following description.

In the accompanying drawings forming a part of the application andwherein like numerals are employed to designate like parts throughoutthe several views,

Fig. 1 is a perspective view of a cross trolley arrangement showing oneform of suspension bracket for the tool,

Fig. 2 is a side elevation of the tool showing another form of bracket,

Fig. 3 is an enlarged side elevation of the tool showing another form ofcombination bracket embodying-two axes,

Fig. 4 is a perspective view of the tool having a bracket with a neutralaxis disposed between the jaws of the tool for vertical and horizontaldisposition of the jaws,

Fig. 5 is a top plan of the tool showing the offset disposition of thelower jaw,

Referring now more in detail to the drawings and particularly to Figs.and 5, wherein the peculiar characteristics of the tool will be betterunderstood. it will be appreciated that the tool in this instancecomprises a substantially C- shaped hydraulic rivet heading yokecomposed of a very heavy and stout shank 6 provided with a pair ofspaced substantially parallel jaws I and 8. The relative lower jaw 8 hasan offset portion as shown with its free anvil end in alignment with ahydraulic ram to be presently described. It will be noted that the shankof the yoke is about twice as thick and heavy as its jaws for effectiveresistance against breakage under stress of tons of pressure exerted byand upon the tool as well as to effect proper balance between the partsof the tool. It will also be noted that the jaws l and 6 graduallyincrease in depth toward the shank 6, whereby this increases theoverweight of the shank portion of the tool over the jaw portions, sothat if the tool is suspended from a point in either jaw, the increasedweight of the shank portion will cause the shank portion to movedownward under the influence of gravity to cause the jaws to pointupward. By shifting this point of suspension, the tool can be hung tocause the jaws to extend in any direction desired. However, in thisinstance it is desired that the jaws be normally disposed substantiallyhorizontally, and to counterbalance the excessive weight of the shankportion 6, a hydraulic cylinder 9 is mounted in upright positionsubstantially in the plane of the tool upon the upper outer end of theupper jaw l and is provided with a hydraulic ram Iil operating throughthe upper jaw for cooperation with an anvil or rivet set ll providedupon the inner face of the free end of the lower jaw 3. Flexible hoseconnections l2 are provided for the hydraulic cylinder 9 for theentrance and exitof fluid to raise and. lower the ram l!) in theriveting operations. This tool thus equipped, weighs in the neighborhoolof '75 pounds and consequently could not be handled by the averageworker throughout normal working hours, unless it is suspended in amanner to be steered or guided to its proper working position with theminimum physical exertion and all of the dead Weight of the tool isremoved from the operator. The side of the hydraulic cylinder 9 isprovided with a handle l3 having an electric push button it whichcontrols a circuit to an electric valve, not shown, for controlling theflow or fluid under pressure to and from opposite ends of the ramcylinder. In some installations the handle I3 is provided on the.

outer end of the hydraulic cylinder as shown in Fig. 4, and in instancesmay be connected with the shank 6 of the yoke as shown in dotted linesin Fig. 1. In Fig. 2 a handle may be formed on the outer end of thebracket where the dotted line eye 29 is shown.

This yoke finds use in so many different places requiring a variety ofmeans of suspension to en able it to be supported in approximately its.

working angle to be rapidly moved into Working position, that it isadvantageous to provide the yoke with universal means whereby suspensionbrackets of diiierent typescan be rapidly interchanged on the yoke forshifting its fulcrum points and suspending it with its jaws normallydisposed at any desired angle to the horizontal, best suited to rapidengagement with the work.

For this purpose, the upper corner of the yoke or shank 6 is beveled atan angle of approximate- 1y 45 degrees, and the resulting inclinedsurface i5 is tapped with a pair of holes 25 to receive screws l6 forremovably securing any one of a plurality of interchangeable suspensionbrackets H thereto. These brackets will be later described in furtherdetail. A cable I8 is connected to the brackets and is wound upon thereel of the usual commercial spring balancer !9 which supports the yokeat any elevation to which it may be moved.

' In order that the yoke may be moved Without undue physical exertion toany position within a comparatively large area, the balancer E3 issuspended from a trolley 23 which is substantiah ly U-shaped with itstrolley wheels rolling upon the lower flange of a suspended floating Ibeam 23, on opposite sides of its web. This beam is suspended by a pairof U-shaped carriages 2|. each of which embraces the lower half of an Ibeam tram rail 22, and is provided with a pair of rollers disposed ateach side of the web thereof to roll upon the flanges thereof as shownin Fig. 1. The tram rails are of course arranged parallel to each otherand extend lengthwise of the area to be Worked. Thus, the suspended yokecan be moved rectilinearly in one direction upon the carriages 2| andalso rectilinearly in a direc tion at right angles thereto upon thetrolley 2 to locate the yoke adjacent to work located within the rangeof the tram rails and suspended beam 28.

Referring to Fig. 2, it will be noted that one form of bracket or flatplate 24 is provided with a pair of holes registering with the threadedholes 25 in the yoke to be fastened thereto by means of a pair of screwsI6. One end of the plate is provided with an angularly disposed integraleye 28, which is arranged either above the shank 6 to provide ahorizontal axis 26 for suspending the yoke with its jaws substantiallyparallel, or to dis-pose the jaws at a slight downward inclination, ifthe plate 24 is reversed end for end, so that the eye 26' is arranged asshown in dotted lines. A swivel 21 is connected with the suspensioncable l8 and is hooked into the eye to provide a horizontal axis. Theyoke can then be tilted on the horizontal axis 26 provided by the eye26, to facilitate engagement of the jaws with the'work.

In Fig. 3, the yoke is provided with the same inclined surface I5 and apair of tapped openings 25 to receive the same pair of screws l6 forfastening a different form of bracket 28 to the yoke. This bracket hasone end 23 angularly disposed to be arranged parallel with the shank 6,or if the bracket is inverted and secured to the inclined surface IS,the end 29 will extend rearwardly of the shank at right angles thereto.This end of the bracket is provided with an integral stud or pivot pin3|] extending at right angles to the portion 29 and terminates in areduced threaded end to receive a washer and nut. An arcuate arm 3| hasits lower end 32 formed as a bearing and its upper end 33 curved todispose its upper end above the shank 5. The upper end of the arm 3|terminates in an eyelet fastened to the suspension cable I8 to provide ahorizontal axis 34 arranged at right angles to the pivot 30. Thus, thesuspension includes a pair of horizontal pivots arranged at right anglesto each other, whereby the yoke can be rocked up or down in its verticalplane on its axis 34, or sidewise on. a pivot 30 in a plane normal tothat of the yoke to meet work of various angularity in two dif ferentplanes.

' between the yoke jaws.

By taking the arm 3| off of the pivot and 7 replacing it, end for end,the arm 3| will curve outwardly away from the yoke, thereby causing itseyelet axis 34 to be disposed further away from the weight of the yokeand hydraulic cylinder.

Consequently, when the yoke is suspended in this manner, it will swingdownwardly from the position shown in Fig. 3 so that the jaws and 8 willhang down substantially vertically with the pivot 39 standing upright.This pivot 30 therefore becomes a vertical pivot, so that the yoke canbe moved about a vertical axis without a swivel and without twisting thesuspension cable, while it can also be rocked upon the horizontal axis34 to change the angularity of the jaws from the vertical.

Fig. 4 illustrates a form of suspension means using the same generalform of means for securing the suspension to the yoke, and provides forarranging a horizontal axis between the jaws, whereby they can be rockedforward andbackward to dispose the jaws vertically or horizontally. Theyoke 6 in this instance, is provided with the inclined heel 15 to whicha bracket 35 is removably secured by the same pair of screws IS. Thebracket is provided upon opposite sides with elongated right angulararms 36 which extend diagonally across the yoke and terminate in endshaving registering apertures 31 in a plane A sleeve 33 is disposedbetween the apertured ends of the arms 36 to prevent their inwardrelative movement and a suspension loop 33 has a horizontal axis portionextending through the sleeve 38 and apertures 37 in the arms to supportthe yoke on a horizontal axis. The loop 39 includes a pair of verticalparallel arm portions which are suspended from the cable I8, and theloop is large enough to permit the hydraulic cylinder 9 or the shank andjaws of the yoke, to move between the arms of the loop when the yoke isswung forward or backward on the axis 40.

It will be obvious that any of the suspension brackets shown and otherssuggested thereby can i be removed from the yoke and interchanged withone another to provide a suspension adapted to mount the yoke in themost convenient position to swing upon axes to engage the jaws with anytype of work with the least manual exertion. The means for connectingthe brackets with the yoke being simple and interchangeable, provide formaking rapid changes to the form of suspension desired.

It will of course be understood that various changes in the size, shapeand arrangement of parts may be resorted to without departing from thespirit of the invention or the scope of the appended claims.

I claim:

1. lool suspension comprising a tool having a beveled corner with a pairof tapped holes therein, a reversible bracket having registering holesseated upon said corner and secured thereto with a pair of screws, andsaid bracket having one end extended beyond the corner of the tool inthe direction of said beveled corner and there provided with aperforated portion disposed to suspend the tool in different positions.

2. The combination with a riveter yoke including a shank and a pair ofjaws, the upper corner of said yoke having an inclined surface, areversible bracket secured to said surface and havmg one end extendingin the plane of said inclined surface beyond said corner of the yoke andterminating in an angularly disposed portion with an integral eye whichby reversing the bracket can be made to extend beyond the yoke forcausing it to hang in different positions, and suspension means for theyoke connected with said eye.

3. Tool suspension comprising a C-shaped riveter yoke having a pair ofspaced jaws supported in horizontal planes and oscillated upon an axistransverse to the jaws, one of said jaws having an inclined planesurface with a pair of tapped holes therein, a reversible suspension 10bracket having registering holes seated upon said inclined surface andhaving a portion thereof extended laterally beyond the corner of saidyoke and in the direction of said inclined surface above the jaws, and apair of screws for securing the bracket to the yoke whereby either endof the bracket can be made to project beyond the yoke for causing it tohang in different positions.

ANDREW E. RYLANDER.

